Compound-specific bromine isotope compositions of one natural and six = dustrially synthesised organobromine substances
2011 (English)In: Environmental Chemistry, ISSN 1448-2517, Vol. 8, no 2, 127-132 p.Article in journal (Refereed) Published
AB The stable bromine isotopic composition (delta(81)Br) was determined for six industrially synthesised brominated organic compounds (BOCs) and one natural BOC by gas-chromatography multi-collector inductively coupled plasma mass spectrometry (GC-mcICP-MS). The delta(81)Br compositions of brominated benzenes, phenols (both natural and industrial), anisoles, and naphthalenes were constrained with the standard differential measurement approach using as reference a monobromobenzene sample with an independently determined delta(81)Br value (-0.39 parts per thousand v. Standard Mean Ocean Bromide, SMOB). The delta(81)Br values for the industrial BOCs ranged from -4.3 to -0.4 parts per thousand. The average delta(81)Br value for the natural compound (2,4-dibromophenol) was 0.2 +/- 1.6% (1 s.d.), and for the identical industrial compound (2,4-dibromophenol) -1.1 +/- 0.9 parts per thousand (1 s.d.), with a statistically significant difference of similar to 1.4 (P<0.05). The delta(81)Br of four out of six industrial compounds was found to be significantly different from that of the natural sample. These novel results establish the bromine isotopic variability among the industrially produced BOCs in relation to a natural sample.
Place, publisher, year, edition, pages
2011. Vol. 8, no 2, 127-132 p.
brominated organic compounds (BOCs), compound-specific isotope = alysis (CSIA), gaschromatography multi-collector inductively coupled = asma mass spectrometry (GC-mcICP-MS), pollutants
IdentifiersURN: urn:nbn:se:su:diva-66652DOI: 10.1071/EN10090ISI: 000290107100003OAI: oai:DiVA.org:su-66652DiVA: diva2:468164
authorCount :72011-12-202011-12-202011-12-20Bibliographically approved